PDO连接数据库

public function test1()
{
    $pdo =  new \PDO('mysql:host=127.0.0.1;dbname=phpframe;port=3306;charset=utf8','root','root');
    print_r($pdo);
}

测试查询一千条时间

        echo microtime();
        $pdo =  new \PDO('mysql:host=127.0.0.1;dbname=phpframe;port=3306;charset=utf8','root','root');
        for ($i=0;$i<10000;$i++){

            $sql = "select * from test1";
            $arr = $pdo->query($sql);
            $res = [];
            while($row = $arr->fetchObject()){
                $res[]=$row;
            }
        }
        print_r($res);
        echo "<br>";
        echo microtime();

来源：CSDN

作者：划水小老虎

链接：https://blog.csdn.net/weixin_43162776/article/details/103653023